The human traffickers are extremely adept in understanding human nature. In my answer I am going to exclude those people who are the poorest from the 3rd world countries. Ask yourself why people post on You Tube videos of themselves doing very mundane or ridiculous activities or take selfies and post them on all kinds of social media.
One method these traffickers use is to promise the people, especially the young careers where they will become famous. A more sophisticated method is to lure people on the internet. These traffickers get to know the people they are communicating and begin "grooming" them and after a while may ask for nude photos.
Once these are sent the individual is open to extortion because of shame or embarrassment. These predators also prey on people's insecurities and know how to manipulate them to the traffickers advantage. Some people may go out with a trafficker and not realize at the beginning of the relationship.
When the trafficker becomes a little more controlling, the person rather than get out of the relationship will put up with all kinds of behaviours because "they love the person" and are afraid of being alone. There are a myriad of ways these traffickers lure people but the key is that they are master manipulators and their techniques will vary according to the individual they want as their victim.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.